Pool Rx Plus Blue Unit 7.5-20K Gallons (Various Amounts)

The PoolRx+ booster contains the additional granular needed to replace minerals that are lost through backwash, splash out and algae kill. PoolRx+ booster can also be used for larger pools that need additional minerals when initially installing a PoolRx+ pool unit. The booster must be used with your previously purchased PoolRx+ pool unit. The granular does not need to go back into the PoolRx+ pool unit; it just needs to dissolve back into the pool water. 

Features:

• Replaces lost minerals
• Used as additional minerals for larger pools
• Lasts for 4-6 months

Active Ingredients:

• Copper Sulphate Pentahydrate - 86.85%
• Zinc Sulfate Monohydrate - 1.51%
• Silver Nitrate - 0.40%
• Other Ingredients - 11.24%